University of Pisa

output

19922026

most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1993Show all

20 papers · 1 filter

hep-th1993★ 44 cited

Antisymmetric tensor matter fields: an abelian model

L. V. Avdeev, M. V. Chizhov

We present a simple renormalizable abelian gauge model which includes antisymmetric second-rank tensor fields as matter fields rather than gauge fields known for a long time. The f…

hep-lat1993★ 1 cited

Bosonization and the lattice Gross-Neveu model

Matteo Beccaria

We consider a lattice version of the bosonized Gross-Neveu model. It is explicitely chiral symmetric and its numerical simulation does not involve any anticommuting field. We study…

chao-dyn1993

A Dynamical Approach to Fractional Brownian Motion

R Mannella, P Grigolini, BJ West

Herein we develop a dynamical foundation for fractional Brownian Motion. A clear relation is established between the asymptotic behaviour of the correlation function and diffusion…

chao-dyn1993★ 73 cited

Supernarrow Spectral Peaks and High Frequency Stochastic Resonance in Systems with Coexisting Periodic Attractors

MI Dykman, DG Luchinsky, R Mannella +3

The kinetics of a periodically driven nonlinear oscillator, bistable in a nearly resonant field, has been investigated theoretically and through analogue experiments. An activation…

chao-dyn1993★ 6 cited

High Frequency Stochastic Resonance in Periodically Driven Systems

M. I. Dykman, D. G. Luchinsky, R. Mannella +4

High frequency stochastic resonance (SR) phenomena, associated with fluctuational transitions between coexisting periodic attractors, have been investigated experimentally in an el…

chao-dyn1993

Stochastic Resonance

M. I. Dykman, D. G. Luchinsky, R. Mannella +4

Stochastic resonance (SR) - a counter-intuitive phenomenon in which the signal due to a weak periodic force in a nonlinear system can be {\it enhanced} by the addition of external…

hep-lat1993★ 7 cited

The Kramers equation simulation algorithm II. An application to the Gross-Neveu model

Matteo Beccaria, Giuseppe Curci, Luca Galli

We continue the investigation on the applications of the Kramers equation to the numerical simulation of field theoretic models. In a previous paper we have described the theory an…

hep-lat1993★ 9 cited

The Kramers equation simulation algorithm I. Operator analysis

Matteo Beccaria, Giuseppe Curci

Using an operatorial formalism, we study the Kramers equation and its applications to numerical simulations. We obtain classes of algorithms which may be made precise at every desi…

hep-lat1993★ 22 cited

Two dimensional SU(N) x SU(N) chiral models on the lattice

Paolo Rossi, Ettore Vicari

Lattice $S U (N) \times S U (N)$ chiral models are analyzed by strong and weak coupling expansions and by numerical simulations. $1 2^{t h}$ order strong coupling series for the free and…

hep-lat1993★ 15 cited

Scaling, asymptotic scaling and Symanzik improvement. Deconfinement temperature in SU(2) pure gauge theory

Giancarlo cella, Giuseppe Curci, Raffaele Tripiccione +1

We report on a high statistics simulation of SU(2) pure gauge field theory at finite temperature, using Symanzik action. We determine the critical coupling for the deconfinement ph…

hep-lat1993★ 63 cited

The Three-Loop Lattice Free Energy

B. Alles, M. Campostrini, A. Feo +1

We calculate the free energy of SU(N) gauge theories on the lattice, to three loops. Our result, combined with Monte Carlo data for the average plaquette, gives a more precise esti…

hep-th1993★ 7 cited

Stationary Solutions and Closed Time-Like Curve in 2+1 Dimensional Gravity

P. Menotti, D. Seminara

We give the general solution of the stationary problem of 2+1 dimensional gravity in presence of extended sources, also endowed with angular momentum. We solve explicitly the compa…

hep-lat1993★ 8 cited

The $1/ N$ expansion of two-dimensional spin models

Massimo Campostrini, Paolo Rossi

A general two-dimensional spin model with U $(N)$ invariance, interpolating between $\CPN$ and $O (2 N)$ models, is studied in detail in order to illustrate both the general fea…

hep-ph1993★ 74 cited

Phenomenological Implications of Supersymmetry Breaking by the Dilaton

R. Barbieri, J. Louis, M. Moretti

We investigate the low energy properties of string vacua with spontaneously broken $N = 1$ supersymmetry by a dilaton $F$ -term. As a consequence of the universal couplings of the dil…

chao-dyn1993★ 26 cited

Modifying the onset of homoclinic chaos. Application to a bistable potential

G. Cicogna, L. Fronzoni

We analyze, by means of Melnikov method, the possibility of modifying the threshold of homoclinic chaos in general 1-dimensional problems, by introducing small periodic resonant mo…

hep-ph1993★ 294 cited

$b \to s γ$ Decay and Supersymmetry

R. Barbieri, G. F. Giudice

The inclusive radiative $B$ -decay is a sensitive probe of new physics, especially if related to the virtual exchange of a charged Higgs boson. Supersymmetric models provide a parti…

hep-ph1993★ 7 cited

QCD Tests in Proton-Antiproton Collisions

John HUTH, Michelangelo MANGANO

We review the status of QCD tests in high energy p-pbar collisions. Contents: i) Introduction ii) QCD in Hadronic Collisions iii) Jet Production iv) Heavy Flavour Production v) W a…

hep-lat1993★ 55 cited

Renormalization and topological susceptibility on the lattice: SU(2) Yang-Mills theory

Bartomeu Alles, Massimo Campostrini, Adriano Di Giacomo +2

The renormalization functions involved in the determination of the topological susceptibility in the SU(2) lattice gauge theory are extracted by direct measurements, without relyin…

hep-lat1993★ 16 cited

Finite size scaling in CP(N-1) models